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2 years ago

Which is the better buy, 7 pounds for $8.47 or 9 pounds for $11.07?

2 answers:

wel2 years ago

7 0

Let us take the case of 7 pounds for $8.47 first.
7 pounds of a product costs = 8.47 dollars
Then
1 pound of the same product will cost = (8.47/7) dollars
= 1.21 dollars
Now let us take the case of 9 pounds for $11.07
9 pounds of a product costs = 11.07 dollars
Then
1 pound of the same product will cost = (11.07/9) pounds
= 1.23 dollars
So from the above deductions we can see that 9 pounds for $11.07 is a better buy than 7 pounds for $8.47. I hope the procedure is clear enough for you to understand. In future you can use this method for solving similar problems.

Dennis_Churaev [7]2 years ago

7 0

7 for 8.47 because 8.47/7=1.21 and 11.07/9=1.23

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Andrea baked h muffins. violet baked 8 fewer muffins then andrea. find the average number of muffins baked by both girl, in term

Nana76 [90]

This is the concept of algebra, the average number of muffins baked by each girl will be given as follows;
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Muffins baked by Violet =h-8

Average=(Total sum of numbers)/(Number of items)
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2 years ago

Read 2 more answers

Which statements are correct interpretations of this graph?

kupik [55]

Answer:

B. 3 pages are edited every five minutes

D. 6/10 of a page is edited per minute

Step by step:

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0.6 * 5 = 3 per five minutes

The other statements are false.

12/3 = 4, four done every minute, really?

5 pages are edited every three minutes.

This would disprove statement B.

And does not align with the graph.

Hope this helps.

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2 years ago

If lines Joined each given point on the graph to the origin, which points would be on lines that represent a unit rate greater t

nirvana33 [79]

Answer

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Step-by-step explanation:

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3 years ago

Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance

zzz [600]

Answer:

$\frac{\Delta v}{v}=0.426$

Step-by-step explanation:

you have that the average sped is given by the following formula:

$v(x,t)=\frac{x}{t}$

The uncertainty formula for a division is given by:

$\frac{\Delta v}{v}=\sqrt{(\frac{\Delta x}{x})^2+(\frac{\Delta t}{t})^2}$ (1)

Δv: uncertainty in speed

Δx: uncertainty in the distance = 0.9m

Δt: uncertainty in time = 0.7s

x: distance = 8.1m

t: time = 1.7s

You replace the values of all parameters in the equation (1):

$\frac{\Delta v}{v}=\sqrt{(\frac{0.9}{8.1})^2+(\frac{0.7}{1.7})^2}\\\\\frac{\Delta v}{v}=0.426$

Hence, the relation between the uncertainty in the average velocity is 0.426

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3 years ago

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andrew11 [14]

Answer:

Question 1: Answer would be A.

Question 2: Answer would be B.

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Step-by-step explanation:

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Question 3 Explanation:

Question 4 Explanation:

Question 5 Explanation:

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Question 7 Explanation:

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